Synthesis and reactivity of [ReBr2(NCCH3)2(CO)2]−: A new precursor for bioorganometallic chemistry

Kromer, Lukas; Spingler, Bernhard; Alberto, Roger

doi:10.1016/j.jorganchem.2006.10.043

Cited by 14 publications

(15 citation statements)

References 14 publications

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“…All chemicals in this study were reagent grade and used without further purification. (NEt 4 ) 2 [Re(CO) 3 Br 3 ] was prepared from [Re(CO) 5 Br] and (NEt 4 )Br in diglyme [37,38] . HL 1 was prepared according to a literature procedure [39] …”

Section: Methodsmentioning

confidence: 99%

Tricarbonylrhenium(I) Complexes with Tridentate Schiff Bases

Hildebrandt

Hagenbach

Abram

2021

Zeitschrift anorg allge chemie

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Potentially tridentate, phosphine‐containing Schiff bases with P,N,O and P,N,P donor sets have been prepared from 2‐(diphenylphosphino)benzaldehyde, salicylaldehyde, 2‐aminophenol and 2‐((diphenylphosphino)phenyl)methylamine and reacted with (NEt4)2[Re(CO)3Br3] in methanol. Deprotonation and the formation of neutral [Re(CO)3(L)] complexes with tridentate coordination of the Schiff bases has been obtained for the salicylidene derivatives, while the potential P,N,P ligand L3 forms [Re(CO)3Br(L3)] with the Schiff base in a bidentate bonding mode. The formation of a cationic [Re(CO)3(L3)]+ complex with tripodal coordination of the organic ligand could be achieved by the addition of Ag(PF6) to the reaction mixture. The obtained rhenium(I) complexes were studied spectroscopically and by X‐ray diffraction.

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Section: Methodsmentioning

confidence: 99%

Tricarbonylrhenium(I) Complexes with Tridentate Schiff Bases

Hildebrandt

Hagenbach

Abram

2021

Zeitschrift anorg allge chemie

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“…(1), a potential source of the cis-[Re(CO) 2 ] + core. 23 Complex 1 possesses four positions, which can potentially be occupied by a variety of ligands thereby offering convenient access to novel complexes. In this article, we present stability studies of 1 together with its reactivities towards mono-, bi-and tetradentate ligands.…”

Section: Institute Of Inorganicmentioning

confidence: 99%

Substitution reactions with [ReBr2(CO)2(NCCH3)2]−: a convenient route to complexes with the cis-[Re(CO)2]+ core

Kromer¹,

Spingler²,

Alberto³

2008

Dalton Trans.

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Water- and air-stable complexes comprising the cis-[Re(CO)(2)](+) core can be synthesized from the (Et(4)N)[ReBr(2)(NCCH(3))(2)(CO)(2)] precursor . Complex showed distinctly different chemical and electronic behaviour compared to [ReBr(3)(CO)(3)](2-). Substituting the two bromides in with imidazole-like ligands or alpha,alpha'-diimines gave new complexes with potential applications in bioinorganic chemistry and photochemistry. The two acetonitrile ligands are very stably bound and could not be replaced. Under CO pressure, the uncommon complex mer-[ReBr(NCCH(3))(2)(CO)(3)] was formed from . The reaction of with the tetradentate ligand bis(2-pyridylmethyl)glycine (BPG) finally induced a four fold substitution at the metal center to form a [Re(CO)(2)(L(4))](+)-type complex.

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“…In the early 2000's Kromer and Alberto introduced and studied the substitution chemistry of cis-trans-[Re(CO) 2 (CH 3 CN) 2 Br 2 ] À species. 18,19 The two acetonitriles are strongly bound and are not substituted by mono-and bidentate ligands. In the last decade the groups of Ko and Ishitani have introduced tunable isocyano and acetonitrile rhenium(I) diimine luminophores of general formula cis,cis-[Re(CO) 2 (N_N)(CNR) 2 ] + and cis,cis-and cis-trans-[Re(CO) 2 (-L 0/00 ) 2 (N_N)] + (with L 0 ¼ CH 3 CN and L 00 ¼ CH 3 CN, py, PR 3 or halide).…”

Section: Introductionmentioning

confidence: 99%